21882770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:339

約数の個数: 64

約数和(自身を含む): 49109760

約数和(自身を除く): 27226990

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 139, 173, 182, 278, 346, 455, 695, 865, 910, 973, 1211, 1390, 1730, 1807, 1946, 2249, 2422, 3614, 4498, 4865, 6055, 9035, 9730, 11245, 12110, 12649, 15743, 18070, 22490, 24047, 25298, 31486, 48094, 63245, 78715, 120235, 126490, 157430, 168329, 240470, 312611, 336658, 625222, 841645, 1563055, 1683290, 2188277, 3126110, 4376554, 10941385, 21882770]

約数ペア:

[(1, 21882770), (2, 10941385), (5, 4376554), (7, 3126110), (10, 2188277), (13, 1683290), (14, 1563055), (26, 841645), (35, 625222), (65, 336658), (70, 312611), (91, 240470), (130, 168329), (139, 157430), (173, 126490), (182, 120235), (278, 78715), (346, 63245), (455, 48094), (695, 31486), (865, 25298), (910, 24047), (973, 22490), (1211, 18070), (1390, 15743), (1730, 12649), (1807, 12110), (1946, 11245), (2249, 9730), (2422, 9035), (3614, 6055), (4498, 4865)]