21028380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4801}}^1$

素因数の和:4886

約数の個数: 48

約数和(自身を含む): 59698464

約数和(自身を除く): 38670084

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 73, 146, 219, 292, 365, 438, 730, 876, 1095, 1460, 2190, 4380, 4801, 9602, 14403, 19204, 24005, 28806, 48010, 57612, 72015, 96020, 144030, 288060, 350473, 700946, 1051419, 1401892, 1752365, 2102838, 3504730, 4205676, 5257095, 7009460, 10514190, 21028380]

約数ペア:

[(1, 21028380), (2, 10514190), (3, 7009460), (4, 5257095), (5, 4205676), (6, 3504730), (10, 2102838), (12, 1752365), (15, 1401892), (20, 1051419), (30, 700946), (60, 350473), (73, 288060), (146, 144030), (219, 96020), (292, 72015), (365, 57612), (438, 48010), (730, 28806), (876, 24005), (1095, 19204), (1460, 14403), (2190, 9602), (4380, 4801)]