21418285420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{42157}}^1$

素因数の和:42383

約数の個数: 96

約数和(自身を含む): 54393937920

約数和(自身を除く): 32975652500

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 191, 266, 380, 382, 532, 665, 764, 955, 1330, 1337, 1910, 2660, 2674, 3629, 3820, 5348, 6685, 7258, 13370, 14516, 18145, 25403, 26740, 36290, 42157, 50806, 72580, 84314, 101612, 127015, 168628, 210785, 254030, 295099, 421570, 508060, 590198, 800983, 843140, 1180396, 1475495, 1601966, 2950990, 3203932, 4004915, 5606881, 5901980, 8009830, 8051987, 11213762, 16019660, 16103974, 22427524, 28034405, 32207948, 40259935, 56068810, 56363909, 80519870, 112137620, 112727818, 152987753, 161039740, 225455636, 281819545, 305975506, 563639090, 611951012, 764938765, 1070914271, 1127278180, 1529877530, 2141828542, 3059755060, 4283657084, 5354571355, 10709142710, 21418285420]

約数ペア:

[(1, 21418285420), (2, 10709142710), (4, 5354571355), (5, 4283657084), (7, 3059755060), (10, 2141828542), (14, 1529877530), (19, 1127278180), (20, 1070914271), (28, 764938765), (35, 611951012), (38, 563639090), (70, 305975506), (76, 281819545), (95, 225455636), (133, 161039740), (140, 152987753), (190, 112727818), (191, 112137620), (266, 80519870), (380, 56363909), (382, 56068810), (532, 40259935), (665, 32207948), (764, 28034405), (955, 22427524), (1330, 16103974), (1337, 16019660), (1910, 11213762), (2660, 8051987), (2674, 8009830), (3629, 5901980), (3820, 5606881), (5348, 4004915), (6685, 3203932), (7258, 2950990), (13370, 1601966), (14516, 1475495), (18145, 1180396), (25403, 843140), (26740, 800983), (36290, 590198), (42157, 508060), (50806, 421570), (72580, 295099), (84314, 254030), (101612, 210785), (127015, 168628)]