21961872

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{349}}^1$

素因数の和:405

約数の個数: 120

約数和(自身を含む): 67704000

約数和(自身を除く): 45742128

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 23, 24, 36, 38, 46, 48, 57, 69, 72, 76, 92, 114, 138, 144, 152, 171, 184, 207, 228, 276, 304, 342, 349, 368, 414, 437, 456, 552, 684, 698, 828, 874, 912, 1047, 1104, 1311, 1368, 1396, 1656, 1748, 2094, 2622, 2736, 2792, 3141, 3312, 3496, 3933, 4188, 5244, 5584, 6282, 6631, 6992, 7866, 8027, 8376, 10488, 12564, 13262, 15732, 16054, 16752, 19893, 20976, 24081, 25128, 26524, 31464, 32108, 39786, 48162, 50256, 53048, 59679, 62928, 64216, 72243, 79572, 96324, 106096, 119358, 128432, 144486, 152513, 159144, 192648, 238716, 288972, 305026, 318288, 385296, 457539, 477432, 577944, 610052, 915078, 954864, 1155888, 1220104, 1372617, 1830156, 2440208, 2745234, 3660312, 5490468, 7320624, 10980936, 21961872]

約数ペア:

[(1, 21961872), (2, 10980936), (3, 7320624), (4, 5490468), (6, 3660312), (8, 2745234), (9, 2440208), (12, 1830156), (16, 1372617), (18, 1220104), (19, 1155888), (23, 954864), (24, 915078), (36, 610052), (38, 577944), (46, 477432), (48, 457539), (57, 385296), (69, 318288), (72, 305026), (76, 288972), (92, 238716), (114, 192648), (138, 159144), (144, 152513), (152, 144486), (171, 128432), (184, 119358), (207, 106096), (228, 96324), (276, 79572), (304, 72243), (342, 64216), (349, 62928), (368, 59679), (414, 53048), (437, 50256), (456, 48162), (552, 39786), (684, 32108), (698, 31464), (828, 26524), (874, 25128), (912, 24081), (1047, 20976), (1104, 19893), (1311, 16752), (1368, 16054), (1396, 15732), (1656, 13262), (1748, 12564), (2094, 10488), (2622, 8376), (2736, 8027), (2792, 7866), (3141, 6992), (3312, 6631), (3496, 6282), (3933, 5584), (4188, 5244)]