21593580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{487}}^1\times {\mathrm{739}}^1$

素因数の和:1238

約数の個数: 48

約数和(自身を含む): 60668160

約数和(自身を除く): 39074580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 487, 739, 974, 1461, 1478, 1948, 2217, 2435, 2922, 2956, 3695, 4434, 4870, 5844, 7305, 7390, 8868, 9740, 11085, 14610, 14780, 22170, 29220, 44340, 359893, 719786, 1079679, 1439572, 1799465, 2159358, 3598930, 4318716, 5398395, 7197860, 10796790, 21593580]

約数ペア:

[(1, 21593580), (2, 10796790), (3, 7197860), (4, 5398395), (5, 4318716), (6, 3598930), (10, 2159358), (12, 1799465), (15, 1439572), (20, 1079679), (30, 719786), (60, 359893), (487, 44340), (739, 29220), (974, 22170), (1461, 14780), (1478, 14610), (1948, 11085), (2217, 9740), (2435, 8868), (2922, 7390), (2956, 7305), (3695, 5844), (4434, 4870)]