19891956

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{7639}}^1$

素因数の和:7684

約数の個数: 48

約数和(自身を含む): 54763520

約数和(自身を除く): 34871564

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 42, 62, 84, 93, 124, 186, 217, 372, 434, 651, 868, 1302, 2604, 7639, 15278, 22917, 30556, 45834, 53473, 91668, 106946, 160419, 213892, 236809, 320838, 473618, 641676, 710427, 947236, 1420854, 1657663, 2841708, 3315326, 4972989, 6630652, 9945978, 19891956]

約数ペア:

[(1, 19891956), (2, 9945978), (3, 6630652), (4, 4972989), (6, 3315326), (7, 2841708), (12, 1657663), (14, 1420854), (21, 947236), (28, 710427), (31, 641676), (42, 473618), (62, 320838), (84, 236809), (93, 213892), (124, 160419), (186, 106946), (217, 91668), (372, 53473), (434, 45834), (651, 30556), (868, 22917), (1302, 15278), (2604, 7639)]