19561983444

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{922561}}^1$

素因数の和:922621

約数の個数: 72

約数和(自身を含む): 53730010880

約数和(自身を除く): 34168027436

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 31, 36, 38, 57, 62, 76, 93, 114, 124, 171, 186, 228, 279, 342, 372, 558, 589, 684, 1116, 1178, 1767, 2356, 3534, 5301, 7068, 10602, 21204, 922561, 1845122, 2767683, 3690244, 5535366, 8303049, 11070732, 16606098, 17528659, 28599391, 33212196, 35057318, 52585977, 57198782, 70114636, 85798173, 105171954, 114397564, 157757931, 171596346, 210343908, 257394519, 315515862, 343192692, 514789038, 543388429, 631031724, 1029578076, 1086776858, 1630165287, 2173553716, 3260330574, 4890495861, 6520661148, 9780991722, 19561983444]

約数ペア:

[(1, 19561983444), (2, 9780991722), (3, 6520661148), (4, 4890495861), (6, 3260330574), (9, 2173553716), (12, 1630165287), (18, 1086776858), (19, 1029578076), (31, 631031724), (36, 543388429), (38, 514789038), (57, 343192692), (62, 315515862), (76, 257394519), (93, 210343908), (114, 171596346), (124, 157757931), (171, 114397564), (186, 105171954), (228, 85798173), (279, 70114636), (342, 57198782), (372, 52585977), (558, 35057318), (589, 33212196), (684, 28599391), (1116, 17528659), (1178, 16606098), (1767, 11070732), (2356, 8303049), (3534, 5535366), (5301, 3690244), (7068, 2767683), (10602, 1845122), (21204, 922561)]