19721430

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{607}}^1$

素因数の和:658

約数の個数: 72

約数和(自身を含む): 54205632

約数和(自身を除く): 34484202

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 30, 38, 45, 57, 90, 95, 114, 171, 190, 285, 342, 361, 570, 607, 722, 855, 1083, 1214, 1710, 1805, 1821, 2166, 3035, 3249, 3610, 3642, 5415, 5463, 6070, 6498, 9105, 10830, 10926, 11533, 16245, 18210, 23066, 27315, 32490, 34599, 54630, 57665, 69198, 103797, 115330, 172995, 207594, 219127, 345990, 438254, 518985, 657381, 1037970, 1095635, 1314762, 1972143, 2191270, 3286905, 3944286, 6573810, 9860715, 19721430]

約数ペア:

[(1, 19721430), (2, 9860715), (3, 6573810), (5, 3944286), (6, 3286905), (9, 2191270), (10, 1972143), (15, 1314762), (18, 1095635), (19, 1037970), (30, 657381), (38, 518985), (45, 438254), (57, 345990), (90, 219127), (95, 207594), (114, 172995), (171, 115330), (190, 103797), (285, 69198), (342, 57665), (361, 54630), (570, 34599), (607, 32490), (722, 27315), (855, 23066), (1083, 18210), (1214, 16245), (1710, 11533), (1805, 10926), (1821, 10830), (2166, 9105), (3035, 6498), (3249, 6070), (3610, 5463), (3642, 5415)]