21354931780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{571}}^1\times {\mathrm{20549}}^1$

素因数の和:21149

約数の個数: 96

約数和(自身を含む): 55293638400

約数和(自身を除く): 33938706620

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 571, 910, 1142, 1820, 2284, 2855, 3997, 5710, 7423, 7994, 11420, 14846, 15988, 19985, 20549, 29692, 37115, 39970, 41098, 51961, 74230, 79940, 82196, 102745, 103922, 143843, 148460, 205490, 207844, 259805, 267137, 287686, 410980, 519610, 534274, 575372, 719215, 1039220, 1068548, 1335685, 1438430, 1869959, 2671370, 2876860, 3739918, 5342740, 7479836, 9349795, 11733479, 18699590, 23466958, 37399180, 46933916, 58667395, 82134353, 117334790, 152535227, 164268706, 234669580, 305070454, 328537412, 410671765, 610140908, 762676135, 821343530, 1067746589, 1525352270, 1642687060, 2135493178, 3050704540, 4270986356, 5338732945, 10677465890, 21354931780]

約数ペア:

[(1, 21354931780), (2, 10677465890), (4, 5338732945), (5, 4270986356), (7, 3050704540), (10, 2135493178), (13, 1642687060), (14, 1525352270), (20, 1067746589), (26, 821343530), (28, 762676135), (35, 610140908), (52, 410671765), (65, 328537412), (70, 305070454), (91, 234669580), (130, 164268706), (140, 152535227), (182, 117334790), (260, 82134353), (364, 58667395), (455, 46933916), (571, 37399180), (910, 23466958), (1142, 18699590), (1820, 11733479), (2284, 9349795), (2855, 7479836), (3997, 5342740), (5710, 3739918), (7423, 2876860), (7994, 2671370), (11420, 1869959), (14846, 1438430), (15988, 1335685), (19985, 1068548), (20549, 1039220), (29692, 719215), (37115, 575372), (39970, 534274), (41098, 519610), (51961, 410980), (74230, 287686), (79940, 267137), (82196, 259805), (102745, 207844), (103922, 205490), (143843, 148460)]