21618904

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{487}}^1$

素因数の和:703

約数の個数: 32

約数和(自身を含む): 42163200

約数和(自身を除く): 20544296

約数列:

[1, 2, 4, 8, 31, 62, 124, 179, 248, 358, 487, 716, 974, 1432, 1948, 3896, 5549, 11098, 15097, 22196, 30194, 44392, 60388, 87173, 120776, 174346, 348692, 697384, 2702363, 5404726, 10809452, 21618904]

約数ペア:

[(1, 21618904), (2, 10809452), (4, 5404726), (8, 2702363), (31, 697384), (62, 348692), (124, 174346), (179, 120776), (248, 87173), (358, 60388), (487, 44392), (716, 30194), (974, 22196), (1432, 15097), (1948, 11098), (3896, 5549)]