21702780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:236

約数の個数: 144

約数和(自身を含む): 73198944

約数和(自身を除く): 51496164

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 97, 99, 110, 113, 132, 165, 180, 194, 198, 220, 226, 291, 330, 339, 388, 396, 452, 485, 495, 565, 582, 660, 678, 873, 970, 990, 1017, 1067, 1130, 1164, 1243, 1356, 1455, 1695, 1746, 1940, 1980, 2034, 2134, 2260, 2486, 2910, 3201, 3390, 3492, 3729, 4068, 4268, 4365, 4972, 5085, 5335, 5820, 6215, 6402, 6780, 7458, 8730, 9603, 10170, 10670, 10961, 11187, 12430, 12804, 14916, 16005, 17460, 18645, 19206, 20340, 21340, 21922, 22374, 24860, 32010, 32883, 37290, 38412, 43844, 44748, 48015, 54805, 55935, 64020, 65766, 74580, 96030, 98649, 109610, 111870, 120571, 131532, 164415, 192060, 197298, 219220, 223740, 241142, 328830, 361713, 394596, 482284, 493245, 602855, 657660, 723426, 986490, 1085139, 1205710, 1446852, 1808565, 1972980, 2170278, 2411420, 3617130, 4340556, 5425695, 7234260, 10851390, 21702780]

約数ペア:

[(1, 21702780), (2, 10851390), (3, 7234260), (4, 5425695), (5, 4340556), (6, 3617130), (9, 2411420), (10, 2170278), (11, 1972980), (12, 1808565), (15, 1446852), (18, 1205710), (20, 1085139), (22, 986490), (30, 723426), (33, 657660), (36, 602855), (44, 493245), (45, 482284), (55, 394596), (60, 361713), (66, 328830), (90, 241142), (97, 223740), (99, 219220), (110, 197298), (113, 192060), (132, 164415), (165, 131532), (180, 120571), (194, 111870), (198, 109610), (220, 98649), (226, 96030), (291, 74580), (330, 65766), (339, 64020), (388, 55935), (396, 54805), (452, 48015), (485, 44748), (495, 43844), (565, 38412), (582, 37290), (660, 32883), (678, 32010), (873, 24860), (970, 22374), (990, 21922), (1017, 21340), (1067, 20340), (1130, 19206), (1164, 18645), (1243, 17460), (1356, 16005), (1455, 14916), (1695, 12804), (1746, 12430), (1940, 11187), (1980, 10961), (2034, 10670), (2134, 10170), (2260, 9603), (2486, 8730), (2910, 7458), (3201, 6780), (3390, 6402), (3492, 6215), (3729, 5820), (4068, 5335), (4268, 5085), (4365, 4972)]