19992448

素因数分解:

$2^7\times 7^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:495

約数の個数: 64

約数和(自身を含む): 46487520

約数和(自身を除く): 26495072

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 64, 106, 112, 128, 212, 224, 371, 421, 424, 448, 742, 842, 848, 896, 1484, 1684, 1696, 2947, 2968, 3368, 3392, 5894, 5936, 6736, 6784, 11788, 11872, 13472, 22313, 23576, 23744, 26944, 44626, 47152, 47488, 53888, 89252, 94304, 156191, 178504, 188608, 312382, 357008, 377216, 624764, 714016, 1249528, 1428032, 2499056, 2856064, 4998112, 9996224, 19992448]

約数ペア:

[(1, 19992448), (2, 9996224), (4, 4998112), (7, 2856064), (8, 2499056), (14, 1428032), (16, 1249528), (28, 714016), (32, 624764), (53, 377216), (56, 357008), (64, 312382), (106, 188608), (112, 178504), (128, 156191), (212, 94304), (224, 89252), (371, 53888), (421, 47488), (424, 47152), (448, 44626), (742, 26944), (842, 23744), (848, 23576), (896, 22313), (1484, 13472), (1684, 11872), (1696, 11788), (2947, 6784), (2968, 6736), (3368, 5936), (3392, 5894)]