21796890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{541}}^1$

素因数の和:647

約数の個数: 64

約数和(自身を含む): 56194560

約数和(自身を除く): 34397670

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 79, 85, 102, 158, 170, 237, 255, 395, 474, 510, 541, 790, 1082, 1185, 1343, 1623, 2370, 2686, 2705, 3246, 4029, 5410, 6715, 8058, 8115, 9197, 13430, 16230, 18394, 20145, 27591, 40290, 42739, 45985, 55182, 85478, 91970, 128217, 137955, 213695, 256434, 275910, 427390, 641085, 726563, 1282170, 1453126, 2179689, 3632815, 4359378, 7265630, 10898445, 21796890]

約数ペア:

[(1, 21796890), (2, 10898445), (3, 7265630), (5, 4359378), (6, 3632815), (10, 2179689), (15, 1453126), (17, 1282170), (30, 726563), (34, 641085), (51, 427390), (79, 275910), (85, 256434), (102, 213695), (158, 137955), (170, 128217), (237, 91970), (255, 85478), (395, 55182), (474, 45985), (510, 42739), (541, 40290), (790, 27591), (1082, 20145), (1185, 18394), (1343, 16230), (1623, 13430), (2370, 9197), (2686, 8115), (2705, 8058), (3246, 6715), (4029, 5410)]