19491488

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{373}}^1$

素因数の和:477

約数の個数: 48

約数和(自身を含む): 40715136

約数和(自身を除く): 21223648

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 71, 92, 142, 184, 284, 368, 373, 568, 736, 746, 1136, 1492, 1633, 2272, 2984, 3266, 5968, 6532, 8579, 11936, 13064, 17158, 26128, 26483, 34316, 52256, 52966, 68632, 105932, 137264, 211864, 274528, 423728, 609109, 847456, 1218218, 2436436, 4872872, 9745744, 19491488]

約数ペア:

[(1, 19491488), (2, 9745744), (4, 4872872), (8, 2436436), (16, 1218218), (23, 847456), (32, 609109), (46, 423728), (71, 274528), (92, 211864), (142, 137264), (184, 105932), (284, 68632), (368, 52966), (373, 52256), (568, 34316), (736, 26483), (746, 26128), (1136, 17158), (1492, 13064), (1633, 11936), (2272, 8579), (2984, 6532), (3266, 5968)]