21489462

素因数分解:

$2^1\times 3^7\times {\mathrm{17}}^3$

素因数の和:74

約数の個数: 64

約数和(自身を含む): 51364800

約数和(自身を除く): 29875338

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 81, 102, 153, 162, 243, 289, 306, 459, 486, 578, 729, 867, 918, 1377, 1458, 1734, 2187, 2601, 2754, 4131, 4374, 4913, 5202, 7803, 8262, 9826, 12393, 14739, 15606, 23409, 24786, 29478, 37179, 44217, 46818, 70227, 74358, 88434, 132651, 140454, 210681, 265302, 397953, 421362, 632043, 795906, 1193859, 1264086, 2387718, 3581577, 7163154, 10744731, 21489462]

約数ペア:

[(1, 21489462), (2, 10744731), (3, 7163154), (6, 3581577), (9, 2387718), (17, 1264086), (18, 1193859), (27, 795906), (34, 632043), (51, 421362), (54, 397953), (81, 265302), (102, 210681), (153, 140454), (162, 132651), (243, 88434), (289, 74358), (306, 70227), (459, 46818), (486, 44217), (578, 37179), (729, 29478), (867, 24786), (918, 23409), (1377, 15606), (1458, 14739), (1734, 12393), (2187, 9826), (2601, 8262), (2754, 7803), (4131, 5202), (4374, 4913)]