21518604

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:351

約数の個数: 72

約数和(自身を含む): 56871360

約数和(自身を除く): 35352756

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 61, 82, 122, 123, 164, 183, 239, 244, 246, 366, 369, 478, 492, 549, 717, 732, 738, 956, 1098, 1434, 1476, 2151, 2196, 2501, 2868, 4302, 5002, 7503, 8604, 9799, 10004, 14579, 15006, 19598, 22509, 29158, 29397, 30012, 39196, 43737, 45018, 58316, 58794, 87474, 88191, 90036, 117588, 131211, 174948, 176382, 262422, 352764, 524844, 597739, 1195478, 1793217, 2390956, 3586434, 5379651, 7172868, 10759302, 21518604]

約数ペア:

[(1, 21518604), (2, 10759302), (3, 7172868), (4, 5379651), (6, 3586434), (9, 2390956), (12, 1793217), (18, 1195478), (36, 597739), (41, 524844), (61, 352764), (82, 262422), (122, 176382), (123, 174948), (164, 131211), (183, 117588), (239, 90036), (244, 88191), (246, 87474), (366, 58794), (369, 58316), (478, 45018), (492, 43737), (549, 39196), (717, 30012), (732, 29397), (738, 29158), (956, 22509), (1098, 19598), (1434, 15006), (1476, 14579), (2151, 10004), (2196, 9799), (2501, 8604), (2868, 7503), (4302, 5002)]