21931287980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{95929}}^1$

素因数の和:96039

約数の個数: 96

約数和(自身を含む): 55697725440

約数和(自身を除く): 33766437460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 71, 92, 115, 140, 142, 161, 230, 284, 322, 355, 460, 497, 644, 710, 805, 994, 1420, 1610, 1633, 1988, 2485, 3220, 3266, 4970, 6532, 8165, 9940, 11431, 16330, 22862, 32660, 45724, 57155, 95929, 114310, 191858, 228620, 383716, 479645, 671503, 959290, 1343006, 1918580, 2206367, 2686012, 3357515, 4412734, 6715030, 6810959, 8825468, 11031835, 13430060, 13621918, 15444569, 22063670, 27243836, 30889138, 34054795, 44127340, 47676713, 61778276, 68109590, 77222845, 95353426, 136219180, 154445690, 156652057, 190706852, 238383565, 308891380, 313304114, 476767130, 626608228, 783260285, 953534260, 1096564399, 1566520570, 2193128798, 3133041140, 4386257596, 5482821995, 10965643990, 21931287980]

約数ペア:

[(1, 21931287980), (2, 10965643990), (4, 5482821995), (5, 4386257596), (7, 3133041140), (10, 2193128798), (14, 1566520570), (20, 1096564399), (23, 953534260), (28, 783260285), (35, 626608228), (46, 476767130), (70, 313304114), (71, 308891380), (92, 238383565), (115, 190706852), (140, 156652057), (142, 154445690), (161, 136219180), (230, 95353426), (284, 77222845), (322, 68109590), (355, 61778276), (460, 47676713), (497, 44127340), (644, 34054795), (710, 30889138), (805, 27243836), (994, 22063670), (1420, 15444569), (1610, 13621918), (1633, 13430060), (1988, 11031835), (2485, 8825468), (3220, 6810959), (3266, 6715030), (4970, 4412734), (6532, 3357515), (8165, 2686012), (9940, 2206367), (11431, 1918580), (16330, 1343006), (22862, 959290), (32660, 671503), (45724, 479645), (57155, 383716), (95929, 228620), (114310, 191858)]