21152803518

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1387433}}^1$

素因数の和:1387470

約数の個数: 72

約数和(自身を含む): 57572961264

約数和(自身を除く): 36420157746

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 121, 126, 154, 198, 231, 242, 363, 462, 693, 726, 847, 1089, 1386, 1694, 2178, 2541, 5082, 7623, 15246, 1387433, 2774866, 4162299, 8324598, 9712031, 12486897, 15261763, 19424062, 24973794, 29136093, 30523526, 45785289, 58272186, 87408279, 91570578, 106832341, 137355867, 167879393, 174816558, 213664682, 274711734, 320497023, 335758786, 503638179, 640994046, 961491069, 1007276358, 1175155751, 1510914537, 1922982138, 2350311502, 3021829074, 3525467253, 7050934506, 10576401759, 21152803518]

約数ペア:

[(1, 21152803518), (2, 10576401759), (3, 7050934506), (6, 3525467253), (7, 3021829074), (9, 2350311502), (11, 1922982138), (14, 1510914537), (18, 1175155751), (21, 1007276358), (22, 961491069), (33, 640994046), (42, 503638179), (63, 335758786), (66, 320497023), (77, 274711734), (99, 213664682), (121, 174816558), (126, 167879393), (154, 137355867), (198, 106832341), (231, 91570578), (242, 87408279), (363, 58272186), (462, 45785289), (693, 30523526), (726, 29136093), (847, 24973794), (1089, 19424062), (1386, 15261763), (1694, 12486897), (2178, 9712031), (2541, 8324598), (5082, 4162299), (7623, 2774866), (15246, 1387433)]