19388790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1021}}^1$

素因数の和:1245

約数の個数: 48

約数和(自身を含む): 50699376

約数和(自身を除く): 31310586

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 211, 422, 633, 1021, 1055, 1266, 1899, 2042, 2110, 3063, 3165, 3798, 5105, 6126, 6330, 9189, 9495, 10210, 15315, 18378, 18990, 30630, 45945, 91890, 215431, 430862, 646293, 1077155, 1292586, 1938879, 2154310, 3231465, 3877758, 6462930, 9694395, 19388790]

約数ペア:

[(1, 19388790), (2, 9694395), (3, 6462930), (5, 3877758), (6, 3231465), (9, 2154310), (10, 1938879), (15, 1292586), (18, 1077155), (30, 646293), (45, 430862), (90, 215431), (211, 91890), (422, 45945), (633, 30630), (1021, 18990), (1055, 18378), (1266, 15315), (1899, 10210), (2042, 9495), (2110, 9189), (3063, 6330), (3165, 6126), (3798, 5105)]