20797218

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:160

約数の個数: 96

約数和(自身を含む): 51996672

約数和(自身を除く): 31199454

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 31, 39, 47, 61, 62, 78, 93, 94, 117, 122, 141, 183, 186, 234, 279, 282, 366, 403, 423, 549, 558, 611, 793, 806, 846, 1098, 1209, 1222, 1457, 1586, 1833, 1891, 2379, 2418, 2867, 2914, 3627, 3666, 3782, 4371, 4758, 5499, 5673, 5734, 7137, 7254, 8601, 8742, 10998, 11346, 13113, 14274, 17019, 17202, 18941, 24583, 25803, 26226, 34038, 37271, 37882, 49166, 51606, 56823, 73749, 74542, 88877, 111813, 113646, 147498, 170469, 177754, 221247, 223626, 266631, 335439, 340938, 442494, 533262, 670878, 799893, 1155401, 1599786, 2310802, 3466203, 6932406, 10398609, 20797218]

約数ペア:

[(1, 20797218), (2, 10398609), (3, 6932406), (6, 3466203), (9, 2310802), (13, 1599786), (18, 1155401), (26, 799893), (31, 670878), (39, 533262), (47, 442494), (61, 340938), (62, 335439), (78, 266631), (93, 223626), (94, 221247), (117, 177754), (122, 170469), (141, 147498), (183, 113646), (186, 111813), (234, 88877), (279, 74542), (282, 73749), (366, 56823), (403, 51606), (423, 49166), (549, 37882), (558, 37271), (611, 34038), (793, 26226), (806, 25803), (846, 24583), (1098, 18941), (1209, 17202), (1222, 17019), (1457, 14274), (1586, 13113), (1833, 11346), (1891, 10998), (2379, 8742), (2418, 8601), (2867, 7254), (2914, 7137), (3627, 5734), (3666, 5673), (3782, 5499), (4371, 4758)]