21371364

素因数分解:

$2^2\times 3^7\times 7^1\times {\mathrm{349}}^1$

素因数の和:381

約数の個数: 96

約数和(自身を含む): 64288000

約数和(自身を除く): 42916636

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 126, 162, 189, 243, 252, 324, 349, 378, 486, 567, 698, 729, 756, 972, 1047, 1134, 1396, 1458, 1701, 2094, 2187, 2268, 2443, 2916, 3141, 3402, 4188, 4374, 4886, 5103, 6282, 6804, 7329, 8748, 9423, 9772, 10206, 12564, 14658, 15309, 18846, 20412, 21987, 28269, 29316, 30618, 37692, 43974, 56538, 61236, 65961, 84807, 87948, 113076, 131922, 169614, 197883, 254421, 263844, 339228, 395766, 508842, 593649, 763263, 791532, 1017684, 1187298, 1526526, 1780947, 2374596, 3053052, 3561894, 5342841, 7123788, 10685682, 21371364]

約数ペア:

[(1, 21371364), (2, 10685682), (3, 7123788), (4, 5342841), (6, 3561894), (7, 3053052), (9, 2374596), (12, 1780947), (14, 1526526), (18, 1187298), (21, 1017684), (27, 791532), (28, 763263), (36, 593649), (42, 508842), (54, 395766), (63, 339228), (81, 263844), (84, 254421), (108, 197883), (126, 169614), (162, 131922), (189, 113076), (243, 87948), (252, 84807), (324, 65961), (349, 61236), (378, 56538), (486, 43974), (567, 37692), (698, 30618), (729, 29316), (756, 28269), (972, 21987), (1047, 20412), (1134, 18846), (1396, 15309), (1458, 14658), (1701, 12564), (2094, 10206), (2187, 9772), (2268, 9423), (2443, 8748), (2916, 7329), (3141, 6804), (3402, 6282), (4188, 5103), (4374, 4886)]