21191028

素因数分解:

$2^2\times 3^1\times {\mathrm{67}}^1\times {\mathrm{26357}}^1$

素因数の和:26431

約数の個数: 24

約数和(自身を含む): 50185632

約数和(自身を除く): 28994604

約数列:

[1, 2, 3, 4, 6, 12, 67, 134, 201, 268, 402, 804, 26357, 52714, 79071, 105428, 158142, 316284, 1765919, 3531838, 5297757, 7063676, 10595514, 21191028]

約数ペア:

[(1, 21191028), (2, 10595514), (3, 7063676), (4, 5297757), (6, 3531838), (12, 1765919), (67, 316284), (134, 158142), (201, 105428), (268, 79071), (402, 52714), (804, 26357)]