21182430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{181}}^1$

素因数の和:321

約数の個数: 64

約数和(自身を含む): 52835328

約数和(自身を除く): 31652898

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 47, 83, 94, 141, 166, 181, 235, 249, 282, 362, 415, 470, 498, 543, 705, 830, 905, 1086, 1245, 1410, 1810, 2490, 2715, 3901, 5430, 7802, 8507, 11703, 15023, 17014, 19505, 23406, 25521, 30046, 39010, 42535, 45069, 51042, 58515, 75115, 85070, 90138, 117030, 127605, 150230, 225345, 255210, 450690, 706081, 1412162, 2118243, 3530405, 4236486, 7060810, 10591215, 21182430]

約数ペア:

[(1, 21182430), (2, 10591215), (3, 7060810), (5, 4236486), (6, 3530405), (10, 2118243), (15, 1412162), (30, 706081), (47, 450690), (83, 255210), (94, 225345), (141, 150230), (166, 127605), (181, 117030), (235, 90138), (249, 85070), (282, 75115), (362, 58515), (415, 51042), (470, 45069), (498, 42535), (543, 39010), (705, 30046), (830, 25521), (905, 23406), (1086, 19505), (1245, 17014), (1410, 15023), (1810, 11703), (2490, 8507), (2715, 7802), (3901, 5430)]