19559820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{6653}}^1$

素因数の和:6679

約数の個数: 72

約数和(自身を含む): 63718704

約数和(自身を除く): 44158884

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 6653, 13306, 19959, 26612, 33265, 39918, 46571, 66530, 79836, 93142, 99795, 133060, 139713, 186284, 199590, 232855, 279426, 325997, 399180, 465710, 558852, 651994, 698565, 931420, 977991, 1303988, 1397130, 1629985, 1955982, 2794260, 3259970, 3911964, 4889955, 6519940, 9779910, 19559820]

約数ペア:

[(1, 19559820), (2, 9779910), (3, 6519940), (4, 4889955), (5, 3911964), (6, 3259970), (7, 2794260), (10, 1955982), (12, 1629985), (14, 1397130), (15, 1303988), (20, 977991), (21, 931420), (28, 698565), (30, 651994), (35, 558852), (42, 465710), (49, 399180), (60, 325997), (70, 279426), (84, 232855), (98, 199590), (105, 186284), (140, 139713), (147, 133060), (196, 99795), (210, 93142), (245, 79836), (294, 66530), (420, 46571), (490, 39918), (588, 33265), (735, 26612), (980, 19959), (1470, 13306), (2940, 6653)]