19931388

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{409}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 48491520

約数和(自身を除く): 28560132

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 124, 131, 186, 262, 372, 393, 409, 524, 786, 818, 1227, 1572, 1636, 2454, 4061, 4908, 8122, 12183, 12679, 16244, 24366, 25358, 38037, 48732, 50716, 53579, 76074, 107158, 152148, 160737, 214316, 321474, 642948, 1660949, 3321898, 4982847, 6643796, 9965694, 19931388]

約数ペア:

[(1, 19931388), (2, 9965694), (3, 6643796), (4, 4982847), (6, 3321898), (12, 1660949), (31, 642948), (62, 321474), (93, 214316), (124, 160737), (131, 152148), (186, 107158), (262, 76074), (372, 53579), (393, 50716), (409, 48732), (524, 38037), (786, 25358), (818, 24366), (1227, 16244), (1572, 12679), (1636, 12183), (2454, 8122), (4061, 4908)]