157911978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1\times {\mathrm{211}}^1$

素因数の和:499

約数の個数: 64

約数和(自身を含む): 368289792

約数和(自身を除く): 210377814

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 103, 173, 206, 211, 309, 346, 422, 519, 618, 633, 721, 1038, 1211, 1266, 1442, 1477, 2163, 2422, 2954, 3633, 4326, 4431, 7266, 8862, 17819, 21733, 35638, 36503, 43466, 53457, 65199, 73006, 106914, 109509, 124733, 130398, 152131, 219018, 249466, 255521, 304262, 374199, 456393, 511042, 748398, 766563, 912786, 1533126, 3759809, 7519618, 11279427, 22558854, 26318663, 52637326, 78955989, 157911978]

約数ペア:

[(1, 157911978), (2, 78955989), (3, 52637326), (6, 26318663), (7, 22558854), (14, 11279427), (21, 7519618), (42, 3759809), (103, 1533126), (173, 912786), (206, 766563), (211, 748398), (309, 511042), (346, 456393), (422, 374199), (519, 304262), (618, 255521), (633, 249466), (721, 219018), (1038, 152131), (1211, 130398), (1266, 124733), (1442, 109509), (1477, 106914), (2163, 73006), (2422, 65199), (2954, 53457), (3633, 43466), (4326, 36503), (4431, 35638), (7266, 21733), (8862, 17819)]