21126708

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{461}}^1$

素因数の和:557

約数の個数: 72

約数和(自身を含む): 57177120

約数和(自身を除く): 36050412

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 67, 76, 114, 134, 171, 201, 228, 268, 342, 402, 461, 603, 684, 804, 922, 1206, 1273, 1383, 1844, 2412, 2546, 2766, 3819, 4149, 5092, 5532, 7638, 8298, 8759, 11457, 15276, 16596, 17518, 22914, 26277, 30887, 35036, 45828, 52554, 61774, 78831, 92661, 105108, 123548, 157662, 185322, 277983, 315324, 370644, 555966, 586853, 1111932, 1173706, 1760559, 2347412, 3521118, 5281677, 7042236, 10563354, 21126708]

約数ペア:

[(1, 21126708), (2, 10563354), (3, 7042236), (4, 5281677), (6, 3521118), (9, 2347412), (12, 1760559), (18, 1173706), (19, 1111932), (36, 586853), (38, 555966), (57, 370644), (67, 315324), (76, 277983), (114, 185322), (134, 157662), (171, 123548), (201, 105108), (228, 92661), (268, 78831), (342, 61774), (402, 52554), (461, 45828), (603, 35036), (684, 30887), (804, 26277), (922, 22914), (1206, 17518), (1273, 16596), (1383, 15276), (1844, 11457), (2412, 8759), (2546, 8298), (2766, 7638), (3819, 5532), (4149, 5092)]