20684412

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1039}}^1$

素因数の和:1135

約数の個数: 72

約数和(自身を含む): 60569600

約数和(自身を除く): 39885188

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 79, 84, 126, 158, 237, 252, 316, 474, 553, 711, 948, 1039, 1106, 1422, 1659, 2078, 2212, 2844, 3117, 3318, 4156, 4977, 6234, 6636, 7273, 9351, 9954, 12468, 14546, 18702, 19908, 21819, 29092, 37404, 43638, 65457, 82081, 87276, 130914, 164162, 246243, 261828, 328324, 492486, 574567, 738729, 984972, 1149134, 1477458, 1723701, 2298268, 2954916, 3447402, 5171103, 6894804, 10342206, 20684412]

約数ペア:

[(1, 20684412), (2, 10342206), (3, 6894804), (4, 5171103), (6, 3447402), (7, 2954916), (9, 2298268), (12, 1723701), (14, 1477458), (18, 1149134), (21, 984972), (28, 738729), (36, 574567), (42, 492486), (63, 328324), (79, 261828), (84, 246243), (126, 164162), (158, 130914), (237, 87276), (252, 82081), (316, 65457), (474, 43638), (553, 37404), (711, 29092), (948, 21819), (1039, 19908), (1106, 18702), (1422, 14546), (1659, 12468), (2078, 9954), (2212, 9351), (2844, 7273), (3117, 6636), (3318, 6234), (4156, 4977)]