21511952

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{919}}^1$

素因数の和:964

約数の個数: 80

約数和(自身を含む): 54758400

約数和(自身を除く): 33246448

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 38, 44, 56, 76, 77, 88, 112, 133, 152, 154, 176, 209, 266, 304, 308, 418, 532, 616, 836, 919, 1064, 1232, 1463, 1672, 1838, 2128, 2926, 3344, 3676, 5852, 6433, 7352, 10109, 11704, 12866, 14704, 17461, 20218, 23408, 25732, 34922, 40436, 51464, 69844, 70763, 80872, 102928, 122227, 139688, 141526, 161744, 192071, 244454, 279376, 283052, 384142, 488908, 566104, 768284, 977816, 1132208, 1344497, 1536568, 1955632, 2688994, 3073136, 5377988, 10755976, 21511952]

約数ペア:

[(1, 21511952), (2, 10755976), (4, 5377988), (7, 3073136), (8, 2688994), (11, 1955632), (14, 1536568), (16, 1344497), (19, 1132208), (22, 977816), (28, 768284), (38, 566104), (44, 488908), (56, 384142), (76, 283052), (77, 279376), (88, 244454), (112, 192071), (133, 161744), (152, 141526), (154, 139688), (176, 122227), (209, 102928), (266, 80872), (304, 70763), (308, 69844), (418, 51464), (532, 40436), (616, 34922), (836, 25732), (919, 23408), (1064, 20218), (1232, 17461), (1463, 14704), (1672, 12866), (1838, 11704), (2128, 10109), (2926, 7352), (3344, 6433), (3676, 5852)]