21910304

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1699}}^1$

素因数の和:1753

約数の個数: 48

約数和(自身を含む): 47980800

約数和(自身を除く): 26070496

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 104, 124, 208, 248, 403, 416, 496, 806, 992, 1612, 1699, 3224, 3398, 6448, 6796, 12896, 13592, 22087, 27184, 44174, 52669, 54368, 88348, 105338, 176696, 210676, 353392, 421352, 684697, 706784, 842704, 1369394, 1685408, 2738788, 5477576, 10955152, 21910304]

約数ペア:

[(1, 21910304), (2, 10955152), (4, 5477576), (8, 2738788), (13, 1685408), (16, 1369394), (26, 842704), (31, 706784), (32, 684697), (52, 421352), (62, 353392), (104, 210676), (124, 176696), (208, 105338), (248, 88348), (403, 54368), (416, 52669), (496, 44174), (806, 27184), (992, 22087), (1612, 13592), (1699, 12896), (3224, 6796), (3398, 6448)]