21370860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{2423}}^1$

素因数の和:2452

約数の個数: 108

約数和(自身を含む): 75439728

約数和(自身を除く): 54068868

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2423, 2940, 4410, 4846, 7269, 8820, 9692, 12115, 14538, 16961, 21807, 24230, 29076, 33922, 36345, 43614, 48460, 50883, 67844, 72690, 84805, 87228, 101766, 109035, 118727, 145380, 152649, 169610, 203532, 218070, 237454, 254415, 305298, 339220, 356181, 436140, 474908, 508830, 593635, 610596, 712362, 763245, 1017660, 1068543, 1187270, 1424724, 1526490, 1780905, 2137086, 2374540, 3052980, 3561810, 4274172, 5342715, 7123620, 10685430, 21370860]

約数ペア:

[(1, 21370860), (2, 10685430), (3, 7123620), (4, 5342715), (5, 4274172), (6, 3561810), (7, 3052980), (9, 2374540), (10, 2137086), (12, 1780905), (14, 1526490), (15, 1424724), (18, 1187270), (20, 1068543), (21, 1017660), (28, 763245), (30, 712362), (35, 610596), (36, 593635), (42, 508830), (45, 474908), (49, 436140), (60, 356181), (63, 339220), (70, 305298), (84, 254415), (90, 237454), (98, 218070), (105, 203532), (126, 169610), (140, 152649), (147, 145380), (180, 118727), (196, 109035), (210, 101766), (245, 87228), (252, 84805), (294, 72690), (315, 67844), (420, 50883), (441, 48460), (490, 43614), (588, 36345), (630, 33922), (735, 29076), (882, 24230), (980, 21807), (1260, 16961), (1470, 14538), (1764, 12115), (2205, 9692), (2423, 8820), (2940, 7269), (4410, 4846)]