21690130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1657}}^1$

素因数の和:1699

約数の個数: 64

約数和(自身を含む): 51570432

約数和(自身を除く): 29880302

約数列:

[1, 2, 5, 7, 10, 11, 14, 17, 22, 34, 35, 55, 70, 77, 85, 110, 119, 154, 170, 187, 238, 374, 385, 595, 770, 935, 1190, 1309, 1657, 1870, 2618, 3314, 6545, 8285, 11599, 13090, 16570, 18227, 23198, 28169, 36454, 56338, 57995, 91135, 115990, 127589, 140845, 182270, 197183, 255178, 281690, 309859, 394366, 619718, 637945, 985915, 1275890, 1549295, 1971830, 2169013, 3098590, 4338026, 10845065, 21690130]

約数ペア:

[(1, 21690130), (2, 10845065), (5, 4338026), (7, 3098590), (10, 2169013), (11, 1971830), (14, 1549295), (17, 1275890), (22, 985915), (34, 637945), (35, 619718), (55, 394366), (70, 309859), (77, 281690), (85, 255178), (110, 197183), (119, 182270), (154, 140845), (170, 127589), (187, 115990), (238, 91135), (374, 57995), (385, 56338), (595, 36454), (770, 28169), (935, 23198), (1190, 18227), (1309, 16570), (1657, 13090), (1870, 11599), (2618, 8285), (3314, 6545)]