21381476564

素因数分解:

$2^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{557}}^1\times {\mathrm{10007}}^1$

素因数の和:10712

約数の個数: 48

約数和(自身を含む): 43156737792

約数和(自身を除く): 21775261228

約数列:

[1, 2, 4, 7, 14, 28, 137, 274, 548, 557, 959, 1114, 1918, 2228, 3836, 3899, 7798, 10007, 15596, 20014, 40028, 70049, 76309, 140098, 152618, 280196, 305236, 534163, 1068326, 1370959, 2136652, 2741918, 5483836, 5573899, 9596713, 11147798, 19193426, 22295596, 38386852, 39017293, 78034586, 156069172, 763624163, 1527248326, 3054496652, 5345369141, 10690738282, 21381476564]

約数ペア:

[(1, 21381476564), (2, 10690738282), (4, 5345369141), (7, 3054496652), (14, 1527248326), (28, 763624163), (137, 156069172), (274, 78034586), (548, 39017293), (557, 38386852), (959, 22295596), (1114, 19193426), (1918, 11147798), (2228, 9596713), (3836, 5573899), (3899, 5483836), (7798, 2741918), (10007, 2136652), (15596, 1370959), (20014, 1068326), (40028, 534163), (70049, 305236), (76309, 280196), (140098, 152618)]