20121947792

素因数分解:

$2^4\times {\mathrm{191}}^1\times {\mathrm{317}}^1\times {\mathrm{20771}}^1$

素因数の和:21287

約数の個数: 40

約数和(自身を含む): 39315912192

約数和(自身を除く): 19193964400

約数列:

[1, 2, 4, 8, 16, 191, 317, 382, 634, 764, 1268, 1528, 2536, 3056, 5072, 20771, 41542, 60547, 83084, 121094, 166168, 242188, 332336, 484376, 968752, 3967261, 6584407, 7934522, 13168814, 15869044, 26337628, 31738088, 52675256, 63476176, 105350512, 1257621737, 2515243474, 5030486948, 10060973896, 20121947792]

約数ペア:

[(1, 20121947792), (2, 10060973896), (4, 5030486948), (8, 2515243474), (16, 1257621737), (191, 105350512), (317, 63476176), (382, 52675256), (634, 31738088), (764, 26337628), (1268, 15869044), (1528, 13168814), (2536, 7934522), (3056, 6584407), (5072, 3967261), (20771, 968752), (41542, 484376), (60547, 332336), (83084, 242188), (121094, 166168)]