21877470

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:290

約数の個数: 96

約数和(自身を含む): 61326720

約数和(自身を除く): 39449250

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 79, 85, 90, 102, 153, 158, 170, 181, 237, 255, 306, 362, 395, 474, 510, 543, 711, 765, 790, 905, 1086, 1185, 1343, 1422, 1530, 1629, 1810, 2370, 2686, 2715, 3077, 3258, 3555, 4029, 5430, 6154, 6715, 7110, 8058, 8145, 9231, 12087, 13430, 14299, 15385, 16290, 18462, 20145, 24174, 27693, 28598, 30770, 40290, 42897, 46155, 55386, 60435, 71495, 85794, 92310, 120870, 128691, 138465, 142990, 214485, 243083, 257382, 276930, 428970, 486166, 643455, 729249, 1215415, 1286910, 1458498, 2187747, 2430830, 3646245, 4375494, 7292490, 10938735, 21877470]

約数ペア:

[(1, 21877470), (2, 10938735), (3, 7292490), (5, 4375494), (6, 3646245), (9, 2430830), (10, 2187747), (15, 1458498), (17, 1286910), (18, 1215415), (30, 729249), (34, 643455), (45, 486166), (51, 428970), (79, 276930), (85, 257382), (90, 243083), (102, 214485), (153, 142990), (158, 138465), (170, 128691), (181, 120870), (237, 92310), (255, 85794), (306, 71495), (362, 60435), (395, 55386), (474, 46155), (510, 42897), (543, 40290), (711, 30770), (765, 28598), (790, 27693), (905, 24174), (1086, 20145), (1185, 18462), (1343, 16290), (1422, 15385), (1530, 14299), (1629, 13430), (1810, 12087), (2370, 9231), (2686, 8145), (2715, 8058), (3077, 7110), (3258, 6715), (3555, 6154), (4029, 5430)]