19420245

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{373}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 36756720

約数和(自身を除く): 17336475

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 89, 117, 195, 267, 373, 445, 585, 801, 1119, 1157, 1335, 1865, 3357, 3471, 4005, 4849, 5595, 5785, 10413, 14547, 16785, 17355, 24245, 33197, 43641, 52065, 72735, 99591, 165985, 218205, 298773, 431561, 497955, 1294683, 1493865, 2157805, 3884049, 6473415, 19420245]

約数ペア:

[(1, 19420245), (3, 6473415), (5, 3884049), (9, 2157805), (13, 1493865), (15, 1294683), (39, 497955), (45, 431561), (65, 298773), (89, 218205), (117, 165985), (195, 99591), (267, 72735), (373, 52065), (445, 43641), (585, 33197), (801, 24245), (1119, 17355), (1157, 16785), (1335, 14547), (1865, 10413), (3357, 5785), (3471, 5595), (4005, 4849)]