72891273

素因数分解:

$3^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{5449}}^1$

素因数の和:5486

約数の個数: 32

約数和(自身を含む): 122080000

約数和(自身を除く): 49188727

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 343, 637, 1029, 1911, 4459, 5449, 13377, 16347, 38143, 70837, 114429, 212511, 267001, 495859, 801003, 1487577, 1869007, 3471013, 5607021, 10413039, 24297091, 72891273]

約数ペア:

[(1, 72891273), (3, 24297091), (7, 10413039), (13, 5607021), (21, 3471013), (39, 1869007), (49, 1487577), (91, 801003), (147, 495859), (273, 267001), (343, 212511), (637, 114429), (1029, 70837), (1911, 38143), (4459, 16347), (5449, 13377)]