21221676

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{3119}}^1$

素因数の和:3145

約数の個数: 72

約数和(自身を含む): 63598080

約数和(自身を除く): 42376404

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, 378, 486, 567, 756, 972, 1134, 1701, 2268, 3119, 3402, 6238, 6804, 9357, 12476, 18714, 21833, 28071, 37428, 43666, 56142, 65499, 84213, 87332, 112284, 130998, 168426, 196497, 252639, 261996, 336852, 392994, 505278, 589491, 757917, 785988, 1010556, 1178982, 1515834, 1768473, 2357964, 3031668, 3536946, 5305419, 7073892, 10610838, 21221676]

約数ペア:

[(1, 21221676), (2, 10610838), (3, 7073892), (4, 5305419), (6, 3536946), (7, 3031668), (9, 2357964), (12, 1768473), (14, 1515834), (18, 1178982), (21, 1010556), (27, 785988), (28, 757917), (36, 589491), (42, 505278), (54, 392994), (63, 336852), (81, 261996), (84, 252639), (108, 196497), (126, 168426), (162, 130998), (189, 112284), (243, 87332), (252, 84213), (324, 65499), (378, 56142), (486, 43666), (567, 37428), (756, 28071), (972, 21833), (1134, 18714), (1701, 12476), (2268, 9357), (3119, 6804), (3402, 6238)]