19991268

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2657}}^1$

素因数の和:2697

約数の個数: 72

約数和(自身を含む): 58050720

約数和(自身を除く): 38059452

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 19, 22, 33, 36, 38, 44, 57, 66, 76, 99, 114, 132, 171, 198, 209, 228, 342, 396, 418, 627, 684, 836, 1254, 1881, 2508, 2657, 3762, 5314, 7524, 7971, 10628, 15942, 23913, 29227, 31884, 47826, 50483, 58454, 87681, 95652, 100966, 116908, 151449, 175362, 201932, 263043, 302898, 350724, 454347, 526086, 555313, 605796, 908694, 1052172, 1110626, 1665939, 1817388, 2221252, 3331878, 4997817, 6663756, 9995634, 19991268]

約数ペア:

[(1, 19991268), (2, 9995634), (3, 6663756), (4, 4997817), (6, 3331878), (9, 2221252), (11, 1817388), (12, 1665939), (18, 1110626), (19, 1052172), (22, 908694), (33, 605796), (36, 555313), (38, 526086), (44, 454347), (57, 350724), (66, 302898), (76, 263043), (99, 201932), (114, 175362), (132, 151449), (171, 116908), (198, 100966), (209, 95652), (228, 87681), (342, 58454), (396, 50483), (418, 47826), (627, 31884), (684, 29227), (836, 23913), (1254, 15942), (1881, 10628), (2508, 7971), (2657, 7524), (3762, 5314)]