21990147256

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1303}}^1\times {\mathrm{27397}}^1$

素因数の和:28724

約数の個数: 64

約数和(自身を含む): 51446868480

約数和(自身を除く): 29456721224

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 308, 616, 1303, 2606, 5212, 9121, 10424, 14333, 18242, 27397, 28666, 36484, 54794, 57332, 72968, 100331, 109588, 114664, 191779, 200662, 219176, 301367, 383558, 401324, 602734, 767116, 802648, 1205468, 1534232, 2109569, 2410936, 4219138, 8438276, 16876552, 35698291, 71396582, 142793164, 249888037, 285586328, 392681201, 499776074, 785362402, 999552148, 1570724804, 1999104296, 2748768407, 3141449608, 5497536814, 10995073628, 21990147256]

約数ペア:

[(1, 21990147256), (2, 10995073628), (4, 5497536814), (7, 3141449608), (8, 2748768407), (11, 1999104296), (14, 1570724804), (22, 999552148), (28, 785362402), (44, 499776074), (56, 392681201), (77, 285586328), (88, 249888037), (154, 142793164), (308, 71396582), (616, 35698291), (1303, 16876552), (2606, 8438276), (5212, 4219138), (9121, 2410936), (10424, 2109569), (14333, 1534232), (18242, 1205468), (27397, 802648), (28666, 767116), (36484, 602734), (54794, 401324), (57332, 383558), (72968, 301367), (100331, 219176), (109588, 200662), (114664, 191779)]