21607408

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:194

約数の個数: 80

約数和(自身を含む): 48345120

約数和(自身を除く): 26737712

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 37, 38, 68, 74, 76, 113, 136, 148, 152, 226, 272, 296, 304, 323, 452, 592, 629, 646, 703, 904, 1258, 1292, 1406, 1808, 1921, 2147, 2516, 2584, 2812, 3842, 4181, 4294, 5032, 5168, 5624, 7684, 8362, 8588, 10064, 11248, 11951, 15368, 16724, 17176, 23902, 30736, 33448, 34352, 36499, 47804, 66896, 71077, 72998, 79439, 95608, 142154, 145996, 158878, 191216, 284308, 291992, 317756, 568616, 583984, 635512, 1137232, 1271024, 1350463, 2700926, 5401852, 10803704, 21607408]

約数ペア:

[(1, 21607408), (2, 10803704), (4, 5401852), (8, 2700926), (16, 1350463), (17, 1271024), (19, 1137232), (34, 635512), (37, 583984), (38, 568616), (68, 317756), (74, 291992), (76, 284308), (113, 191216), (136, 158878), (148, 145996), (152, 142154), (226, 95608), (272, 79439), (296, 72998), (304, 71077), (323, 66896), (452, 47804), (592, 36499), (629, 34352), (646, 33448), (703, 30736), (904, 23902), (1258, 17176), (1292, 16724), (1406, 15368), (1808, 11951), (1921, 11248), (2147, 10064), (2516, 8588), (2584, 8362), (2812, 7684), (3842, 5624), (4181, 5168), (4294, 5032)]