21531588

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{353}}^1$

素因数の和:413

約数の個数: 96

約数和(自身を含む): 59947776

約数和(自身を除く): 38416188

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 23, 26, 34, 39, 46, 51, 52, 68, 69, 78, 92, 102, 138, 156, 204, 221, 276, 299, 353, 391, 442, 598, 663, 706, 782, 884, 897, 1059, 1173, 1196, 1326, 1412, 1564, 1794, 2118, 2346, 2652, 3588, 4236, 4589, 4692, 5083, 6001, 8119, 9178, 10166, 12002, 13767, 15249, 16238, 18003, 18356, 20332, 24004, 24357, 27534, 30498, 32476, 36006, 48714, 55068, 60996, 72012, 78013, 97428, 105547, 138023, 156026, 211094, 234039, 276046, 312052, 316641, 414069, 422188, 468078, 552092, 633282, 828138, 936156, 1266564, 1656276, 1794299, 3588598, 5382897, 7177196, 10765794, 21531588]

約数ペア:

[(1, 21531588), (2, 10765794), (3, 7177196), (4, 5382897), (6, 3588598), (12, 1794299), (13, 1656276), (17, 1266564), (23, 936156), (26, 828138), (34, 633282), (39, 552092), (46, 468078), (51, 422188), (52, 414069), (68, 316641), (69, 312052), (78, 276046), (92, 234039), (102, 211094), (138, 156026), (156, 138023), (204, 105547), (221, 97428), (276, 78013), (299, 72012), (353, 60996), (391, 55068), (442, 48714), (598, 36006), (663, 32476), (706, 30498), (782, 27534), (884, 24357), (897, 24004), (1059, 20332), (1173, 18356), (1196, 18003), (1326, 16238), (1412, 15249), (1564, 13767), (1794, 12002), (2118, 10166), (2346, 9178), (2652, 8119), (3588, 6001), (4236, 5083), (4589, 4692)]