21031010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{191}}^1$

素因数の和:240

約数の個数: 96

約数和(自身を含む): 51480576

約数和(自身を除く): 30449566

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 55, 65, 70, 77, 91, 110, 121, 130, 143, 154, 182, 191, 242, 286, 382, 385, 455, 605, 715, 770, 847, 910, 955, 1001, 1210, 1337, 1430, 1573, 1694, 1910, 2002, 2101, 2483, 2674, 3146, 4202, 4235, 4966, 5005, 6685, 7865, 8470, 10010, 10505, 11011, 12415, 13370, 14707, 15730, 17381, 21010, 22022, 23111, 24830, 27313, 29414, 34762, 46222, 54626, 55055, 73535, 86905, 110110, 115555, 136565, 147070, 161777, 173810, 191191, 231110, 273130, 300443, 323554, 382382, 600886, 808885, 955955, 1502215, 1617770, 1911910, 2103101, 3004430, 4206202, 10515505, 21031010]

約数ペア:

[(1, 21031010), (2, 10515505), (5, 4206202), (7, 3004430), (10, 2103101), (11, 1911910), (13, 1617770), (14, 1502215), (22, 955955), (26, 808885), (35, 600886), (55, 382382), (65, 323554), (70, 300443), (77, 273130), (91, 231110), (110, 191191), (121, 173810), (130, 161777), (143, 147070), (154, 136565), (182, 115555), (191, 110110), (242, 86905), (286, 73535), (382, 55055), (385, 54626), (455, 46222), (605, 34762), (715, 29414), (770, 27313), (847, 24830), (910, 23111), (955, 22022), (1001, 21010), (1210, 17381), (1337, 15730), (1430, 14707), (1573, 13370), (1694, 12415), (1910, 11011), (2002, 10505), (2101, 10010), (2483, 8470), (2674, 7865), (3146, 6685), (4202, 5005), (4235, 4966)]