21605688

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{563}}^1$

素因数の和:629

約数の個数: 96

約数和(自身を含む): 64668240

約数和(自身を除く): 43062552

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 41, 52, 72, 78, 82, 104, 117, 123, 156, 164, 234, 246, 312, 328, 369, 468, 492, 533, 563, 738, 936, 984, 1066, 1126, 1476, 1599, 1689, 2132, 2252, 2952, 3198, 3378, 4264, 4504, 4797, 5067, 6396, 6756, 7319, 9594, 10134, 12792, 13512, 14638, 19188, 20268, 21957, 23083, 29276, 38376, 40536, 43914, 46166, 58552, 65871, 69249, 87828, 92332, 131742, 138498, 175656, 184664, 207747, 263484, 276996, 300079, 415494, 526968, 553992, 600158, 830988, 900237, 1200316, 1661976, 1800474, 2400632, 2700711, 3600948, 5401422, 7201896, 10802844, 21605688]

約数ペア:

[(1, 21605688), (2, 10802844), (3, 7201896), (4, 5401422), (6, 3600948), (8, 2700711), (9, 2400632), (12, 1800474), (13, 1661976), (18, 1200316), (24, 900237), (26, 830988), (36, 600158), (39, 553992), (41, 526968), (52, 415494), (72, 300079), (78, 276996), (82, 263484), (104, 207747), (117, 184664), (123, 175656), (156, 138498), (164, 131742), (234, 92332), (246, 87828), (312, 69249), (328, 65871), (369, 58552), (468, 46166), (492, 43914), (533, 40536), (563, 38376), (738, 29276), (936, 23083), (984, 21957), (1066, 20268), (1126, 19188), (1476, 14638), (1599, 13512), (1689, 12792), (2132, 10134), (2252, 9594), (2952, 7319), (3198, 6756), (3378, 6396), (4264, 5067), (4504, 4797)]