19899810

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{10529}}^1$

素因数の和:10552

約数の個数: 64

約数和(自身を含む): 60652800

約数和(自身を除く): 40752990

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 10529, 21058, 31587, 52645, 63174, 73703, 94761, 105290, 147406, 157935, 189522, 221109, 284283, 315870, 368515, 442218, 473805, 568566, 663327, 737030, 947610, 1105545, 1326654, 1421415, 1989981, 2211090, 2842830, 3316635, 3979962, 6633270, 9949905, 19899810]

約数ペア:

[(1, 19899810), (2, 9949905), (3, 6633270), (5, 3979962), (6, 3316635), (7, 2842830), (9, 2211090), (10, 1989981), (14, 1421415), (15, 1326654), (18, 1105545), (21, 947610), (27, 737030), (30, 663327), (35, 568566), (42, 473805), (45, 442218), (54, 368515), (63, 315870), (70, 284283), (90, 221109), (105, 189522), (126, 157935), (135, 147406), (189, 105290), (210, 94761), (270, 73703), (315, 63174), (378, 52645), (630, 31587), (945, 21058), (1890, 10529)]