199945417

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{401}}^1$

素因数の和:613

約数の個数: 32

約数和(自身を含む): 253163520

約数和(自身を除く): 53218103

約数列:

[1, 7, 19, 23, 133, 161, 163, 401, 437, 1141, 2807, 3059, 3097, 3749, 7619, 9223, 21679, 26243, 53333, 64561, 65363, 71231, 175237, 457541, 498617, 1226659, 1241897, 1503349, 8693279, 10523443, 28563631, 199945417]

約数ペア:

[(1, 199945417), (7, 28563631), (19, 10523443), (23, 8693279), (133, 1503349), (161, 1241897), (163, 1226659), (401, 498617), (437, 457541), (1141, 175237), (2807, 71231), (3059, 65363), (3097, 64561), (3749, 53333), (7619, 26243), (9223, 21679)]