31981446

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:171

約数の個数: 128

約数和(自身を含む): 88089600

約数和(自身を除く): 56108154

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 27, 38, 42, 54, 57, 61, 63, 73, 114, 122, 126, 133, 146, 171, 183, 189, 219, 266, 342, 366, 378, 399, 427, 438, 511, 513, 549, 657, 798, 854, 1022, 1026, 1098, 1159, 1197, 1281, 1314, 1387, 1533, 1647, 1971, 2318, 2394, 2562, 2774, 3066, 3294, 3477, 3591, 3843, 3942, 4161, 4453, 4599, 6954, 7182, 7686, 8113, 8322, 8906, 9198, 9709, 10431, 11529, 12483, 13359, 13797, 16226, 19418, 20862, 23058, 24339, 24966, 26718, 27594, 29127, 31171, 31293, 37449, 40077, 48678, 58254, 62342, 62586, 73017, 74898, 80154, 84607, 87381, 93513, 120231, 146034, 169214, 174762, 187026, 219051, 240462, 253821, 262143, 280539, 438102, 507642, 524286, 561078, 592249, 761463, 841617, 1184498, 1522926, 1683234, 1776747, 2284389, 3553494, 4568778, 5330241, 10660482, 15990723, 31981446]

約数ペア:

[(1, 31981446), (2, 15990723), (3, 10660482), (6, 5330241), (7, 4568778), (9, 3553494), (14, 2284389), (18, 1776747), (19, 1683234), (21, 1522926), (27, 1184498), (38, 841617), (42, 761463), (54, 592249), (57, 561078), (61, 524286), (63, 507642), (73, 438102), (114, 280539), (122, 262143), (126, 253821), (133, 240462), (146, 219051), (171, 187026), (183, 174762), (189, 169214), (219, 146034), (266, 120231), (342, 93513), (366, 87381), (378, 84607), (399, 80154), (427, 74898), (438, 73017), (511, 62586), (513, 62342), (549, 58254), (657, 48678), (798, 40077), (854, 37449), (1022, 31293), (1026, 31171), (1098, 29127), (1159, 27594), (1197, 26718), (1281, 24966), (1314, 24339), (1387, 23058), (1533, 20862), (1647, 19418), (1971, 16226), (2318, 13797), (2394, 13359), (2562, 12483), (2774, 11529), (3066, 10431), (3294, 9709), (3477, 9198), (3591, 8906), (3843, 8322), (3942, 8113), (4161, 7686), (4453, 7182), (4599, 6954)]