21754530

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{4933}}^1$

素因数の和:4960

約数の個数: 72

約数和(自身を含む): 65809692

約数和(自身を除く): 44055162

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 4933, 9866, 14799, 24665, 29598, 34531, 44397, 49330, 69062, 73995, 88794, 103593, 147990, 172655, 207186, 221985, 241717, 310779, 345310, 443970, 483434, 517965, 621558, 725151, 1035930, 1208585, 1450302, 1553895, 2175453, 2417170, 3107790, 3625755, 4350906, 7251510, 10877265, 21754530]

約数ペア:

[(1, 21754530), (2, 10877265), (3, 7251510), (5, 4350906), (6, 3625755), (7, 3107790), (9, 2417170), (10, 2175453), (14, 1553895), (15, 1450302), (18, 1208585), (21, 1035930), (30, 725151), (35, 621558), (42, 517965), (45, 483434), (49, 443970), (63, 345310), (70, 310779), (90, 241717), (98, 221985), (105, 207186), (126, 172655), (147, 147990), (210, 103593), (245, 88794), (294, 73995), (315, 69062), (441, 49330), (490, 44397), (630, 34531), (735, 29598), (882, 24665), (1470, 14799), (2205, 9866), (4410, 4933)]