21665124

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^2\times {\mathrm{1187}}^1$

素因数の和:1226

約数の個数: 72

約数和(自身を含む): 60873120

約数和(自身を除く): 39207996

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 169, 234, 338, 351, 468, 507, 676, 702, 1014, 1187, 1404, 1521, 2028, 2374, 3042, 3561, 4563, 4748, 6084, 7122, 9126, 10683, 14244, 15431, 18252, 21366, 30862, 32049, 42732, 46293, 61724, 64098, 92586, 128196, 138879, 185172, 200603, 277758, 401206, 416637, 555516, 601809, 802412, 833274, 1203618, 1666548, 1805427, 2407236, 3610854, 5416281, 7221708, 10832562, 21665124]

約数ペア:

[(1, 21665124), (2, 10832562), (3, 7221708), (4, 5416281), (6, 3610854), (9, 2407236), (12, 1805427), (13, 1666548), (18, 1203618), (26, 833274), (27, 802412), (36, 601809), (39, 555516), (52, 416637), (54, 401206), (78, 277758), (108, 200603), (117, 185172), (156, 138879), (169, 128196), (234, 92586), (338, 64098), (351, 61724), (468, 46293), (507, 42732), (676, 32049), (702, 30862), (1014, 21366), (1187, 18252), (1404, 15431), (1521, 14244), (2028, 10683), (2374, 9126), (3042, 7122), (3561, 6084), (4563, 4748)]