18977887916

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{3643}}^1$

素因数の和:3831

約数の個数: 96

約数和(自身を含む): 38876640768

約数和(自身を除く): 19898752852

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 71, 83, 142, 166, 221, 284, 332, 442, 884, 923, 1079, 1207, 1411, 1846, 2158, 2414, 2822, 3643, 3692, 4316, 4828, 5644, 5893, 7286, 11786, 14572, 15691, 18343, 23572, 31382, 36686, 47359, 61931, 62764, 73372, 76609, 94718, 100181, 123862, 153218, 189436, 200362, 247724, 258653, 302369, 306436, 400724, 517306, 604738, 805103, 1034612, 1209476, 1302353, 1610206, 2604706, 3220412, 3362489, 3930797, 4397101, 5140273, 5209412, 6724978, 7861594, 8794202, 10280546, 13449956, 15723188, 17588404, 20561092, 21468199, 42936398, 57162313, 66823549, 85872796, 114324626, 133647098, 228649252, 267294196, 279086587, 364959383, 558173174, 729918766, 1116346348, 1459837532, 4744471979, 9488943958, 18977887916]

約数ペア:

[(1, 18977887916), (2, 9488943958), (4, 4744471979), (13, 1459837532), (17, 1116346348), (26, 729918766), (34, 558173174), (52, 364959383), (68, 279086587), (71, 267294196), (83, 228649252), (142, 133647098), (166, 114324626), (221, 85872796), (284, 66823549), (332, 57162313), (442, 42936398), (884, 21468199), (923, 20561092), (1079, 17588404), (1207, 15723188), (1411, 13449956), (1846, 10280546), (2158, 8794202), (2414, 7861594), (2822, 6724978), (3643, 5209412), (3692, 5140273), (4316, 4397101), (4828, 3930797), (5644, 3362489), (5893, 3220412), (7286, 2604706), (11786, 1610206), (14572, 1302353), (15691, 1209476), (18343, 1034612), (23572, 805103), (31382, 604738), (36686, 517306), (47359, 400724), (61931, 306436), (62764, 302369), (73372, 258653), (76609, 247724), (94718, 200362), (100181, 189436), (123862, 153218)]