21029340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{389}}^1$

素因数の和:471

約数の個数: 96

約数和(自身を含む): 63685440

約数和(自身を除く): 42656100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 53, 60, 68, 85, 102, 106, 159, 170, 204, 212, 255, 265, 318, 340, 389, 510, 530, 636, 778, 795, 901, 1020, 1060, 1167, 1556, 1590, 1802, 1945, 2334, 2703, 3180, 3604, 3890, 4505, 4668, 5406, 5835, 6613, 7780, 9010, 10812, 11670, 13226, 13515, 18020, 19839, 20617, 23340, 26452, 27030, 33065, 39678, 41234, 54060, 61851, 66130, 79356, 82468, 99195, 103085, 123702, 132260, 198390, 206170, 247404, 309255, 350489, 396780, 412340, 618510, 700978, 1051467, 1237020, 1401956, 1752445, 2102934, 3504890, 4205868, 5257335, 7009780, 10514670, 21029340]

約数ペア:

[(1, 21029340), (2, 10514670), (3, 7009780), (4, 5257335), (5, 4205868), (6, 3504890), (10, 2102934), (12, 1752445), (15, 1401956), (17, 1237020), (20, 1051467), (30, 700978), (34, 618510), (51, 412340), (53, 396780), (60, 350489), (68, 309255), (85, 247404), (102, 206170), (106, 198390), (159, 132260), (170, 123702), (204, 103085), (212, 99195), (255, 82468), (265, 79356), (318, 66130), (340, 61851), (389, 54060), (510, 41234), (530, 39678), (636, 33065), (778, 27030), (795, 26452), (901, 23340), (1020, 20617), (1060, 19839), (1167, 18020), (1556, 13515), (1590, 13226), (1802, 11670), (1945, 10812), (2334, 9010), (2703, 7780), (3180, 6613), (3604, 5835), (3890, 5406), (4505, 4668)]