20984886

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{179}}^1$

素因数の和:370

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 29818314

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 167, 179, 234, 334, 351, 358, 501, 537, 702, 1002, 1074, 1503, 1611, 2171, 2327, 3006, 3222, 4342, 4509, 4654, 4833, 6513, 6981, 9018, 9666, 13026, 13962, 19539, 20943, 29893, 39078, 41886, 58617, 59786, 62829, 89679, 117234, 125658, 179358, 269037, 388609, 538074, 777218, 807111, 1165827, 1614222, 2331654, 3497481, 6994962, 10492443, 20984886]

約数ペア:

[(1, 20984886), (2, 10492443), (3, 6994962), (6, 3497481), (9, 2331654), (13, 1614222), (18, 1165827), (26, 807111), (27, 777218), (39, 538074), (54, 388609), (78, 269037), (117, 179358), (167, 125658), (179, 117234), (234, 89679), (334, 62829), (351, 59786), (358, 58617), (501, 41886), (537, 39078), (702, 29893), (1002, 20943), (1074, 19539), (1503, 13962), (1611, 13026), (2171, 9666), (2327, 9018), (3006, 6981), (3222, 6513), (4342, 4833), (4509, 4654)]